Made for endurance, comfort, and maximum inriver stability; with the exacting adjustability of the BOA Fit System, the G3 Guide BOA Boot - Felt is the grippy standard worn by farranging guides and anglers who live to get it done.BOA Fit System with an improved M4 dialTraditional Goodyear welt workboot construction for comfort, stability & durabilityDurable, highabrasionresistant leather, synthetic woven and rubber upperIntegrated drain holes prevent water poolingSimms 10mm felt outsoleOutsole accepts Simms Alumibite Star Cleats and Hardbite cleats/studsResoling available